Drop Dockerfile.workspace (#173)

None of our projects currently make use of this, and on upgrading the
image to `golang:1.23.4-alpine3.20`, we're seeing errors on the glibc
step in the Dockerfile. For now, remove it.

README.md

@@ -46,11 +46,6 @@ The following are controlled by makego, and should not be edited directly:
 - [.gitignore](.gitignore) The autogenerated git ignore file.
 - [go.mod](go.mod), [go.sum](go.sum) - The Golang module files. These are autogenerated.
 
-Additionally, makego expects the following if Docker is used:
-
-- [Dockerfile.workspace](Dockerfile.workspace) the Dockerfile for development of your Golang
-  repository. If you include [make/go/docker.mk](make/go/docker.mk), this file should be present.
-
 Otherwise, you're free to choose your own layout, however you should generally do the following:
 
 - Have a file `make/PROJECT/all.mk` such as [make/foo/all.mk](make/foo/all.mk) that defines the
@@ -164,16 +159,14 @@ We are not documenting all development commands, however some important ones of
 
 - `make all` - This is the default goal, and runs linting and testing.
 - `make ci` - This is the goal for CI, and downloads deps, and runs linting, testing, and code coverage.
-  Note that deps are downloaded automatically on a per-target basis, so the intial dep download really
+  Note that deps are downloaded automatically on a per-target basis, so the initial dep download really
   shouldn't be needed.
 - `make generate` - Do all generation.
 - `make lint` - Do all linting.
 - `make build` - Go build.
 - `make test` - Go test.
 - `make cover` - Go code coverage.
 - `make install` - Install all Go binaries defined by `GO_BINS`.
-- `make dockermakeworkspace` - This will run `make all` by default inside the Docker container
-  defined by `Docker.workspace`. You can edit the Makefile target with `DOCKERMAKETARGET`.
 - `make dockerbuild` - Build all Docker images defined by `DOCKER_BINS`.
 - `make updatemakego` - Update from makego main.
 
@@ -207,7 +200,7 @@ These variables are settable in your Makefiles, but should be static, i.e. these
 project-specific settings and not intended to be set on the command line.
 
 - `FILE_IGNORES` - The relative paths to files to add to `.dockerignore` and `.gitignore`. By
-  default, makego will add `.env`, `.tmp`. and any Golang binaries.
+  default, makego will add `.env`, `.tmp`, and any Golang binaries.
   Note if you set this, you should do so by including the current value ie `FILE_IGNORES := $(FILE_IGNORES) .build/`.
 - `CACHE_BASE` - By default, makego caches to `~/.cache/$(PROJECT)`. Set this to change that.
 - `GO_BINS` - The relative paths to your Golang main packages, For example `cmd/foo`.
@@ -232,9 +225,7 @@ These variables are meant to be set when invoking make targets on the command li
   against updating when not intended.
 - `ALL` - This results in all makego files being downloaded when running `make updatemakego`
   instead of just the ones that you current have included.
-- `DOCKERMAKETARGET` - This changes the recursive make target for `make dockermakeworkspace` from
-  `all` to this value.
 - `GOPKGS` - This controls what packages to build for Go commands. By default, this is `./...`. If
   you only wanted to test `./internal/foo/...` for example, you could run `make test GOPKGS=./internal/foo/...`
 - `COVEROPEN` - This will result in the `cover.html` file being automatically opened after `make
-  cover` is run, for example `make cover COVEROPEN=1.
+  cover` is run, for example `make cover COVEROPEN=1`.

make/go/docker.mk

@@ -12,32 +12,11 @@ $(call _assert_var,DOCKER_ORG)
 # Must be set
 $(call _assert_var,DOCKER_PROJECT)
 
-DOCKER_WORKSPACE_IMAGE := $(DOCKER_ORG)/$(DOCKER_PROJECT)-workspace
-DOCKER_WORKSPACE_FILE := Dockerfile.workspace
-DOCKER_WORKSPACE_DIR := /workspace
-
 # Settable
 DOCKER_BINS ?=
 # Settable
 DOCKER_BUILD_EXTRA_FLAGS ?=
 
-# Runtime
-DOCKERMAKETARGET ?= all
-
-.PHONY: dockerbuildworkspace
-dockerbuildworkspace:
-	docker build \
-		$(DOCKER_BUILD_EXTRA_FLAGS) \
-		--build-arg PROJECT=$(PROJECT) \
-		--build-arg GO_MODULE=$(GO_MODULE) \
-		-t $(DOCKER_WORKSPACE_IMAGE) \
-		-f $(DOCKER_WORKSPACE_FILE) \
-		.
-
-.PHONY: dockermakeworkspace
-dockermakeworkspace: dockerbuildworkspace
-	docker run -v "$(CURDIR):$(DOCKER_WORKSPACE_DIR)" $(DOCKER_WORKSPACE_IMAGE) make -j 8 $(DOCKERMAKETARGET)
-
 .PHONY: dockerbuild
 dockerbuild::